const GuildM = require('../models/guilds');
const roleRulesM = require('../models/autoRoleRule')

exports.getUser = (io)=>
{
    return(req,res)=>
    {
        fetch('https://discord.com/api/users/@me', 
        {
            headers: {
                authorization: req.headers.authorization,
            },
        })
        .then(result=>result.json())
        .then(response => 
        {
            res.json(response);
        })
    }
};

exports.guildData = (io,bot)=>
{
    return async (req, res)=>
    {
        let userGuilds =  await fetch('https://discord.com/api/users/@me/guilds',
                                {
                                    headers: {
                                        authorization: req.headers.authorization,
                                    },
                                })
                                .then(result => result.json())
                                .then(response => 
                                {
                                    
                                    if(response.message) return response.message
                                    return response.filter(x=>x.owner==true);
                                })
        var promises = [];
        if(typeof userGuilds == 'string') return res.json({Error:userGuilds})
        for(var guild of userGuilds) {
            promises.push(new Promise((resolve, reject) => {
                (async (guild)=>
                {
                    
                    var aux = await getSpecificGuildData(guild.id);
                    var roleRules = aux ? await getRoleRules(guild.id):null;
                    const dataObject =  
                    {
                        id:guild.id,
                        music:aux.guild?aux.guild.guild[0].music:false,
                        strikes:aux.guild?aux.guild.guild[0].strikes:false,
                        name:guild.name,
                        icon:guild.icon?`https://cdn.discordapp.com/icons/${guild.id}/${guild.icon}.webp`:'https://cdn3.iconfinder.com/data/icons/popular-services-brands-vol-2/512/discord-512.png',
                        features:guild.features,
                        hasRem:aux.extra?true:false,
                        memberCount:aux.extra?aux.extra.memberCount:null,
                        roleRules
                    };
                    resolve(dataObject);

                })(guild)
            }));
        }
        Promise.all(promises).then((values) => {
            return res.json(values);
        });
   
    }
    async function getSpecificGuildData(guildID)
    {
        var extra = bot.guilds.cache.get(guildID)
        var guild = await GuildM.find({gID:guildID})
            .then((guild,err)=>
            {
                if(err || guild.length==0) return;
                return {guild};
            }) 
        return {guild, extra};
    }
    async function getRoleRules(guildid)
    {
        return await roleRulesM.find({gID:guildid}).then((err, rules)=>
        {
            if(err || rules.length==0) return 
            return rules
        })
    }
}


exports.updateGuild = (io)=>
{
    return (req, res)=>
    {
        
        GuildM.findOne({gID:req.body.guildID})
        .then(
            (guild, err)=>
            {
                if(err || guild.length) return res.json({Error:'No guild'});
                
                guild[`${req.body.property}`] =! guild[`${req.body.property}`];
                GuildM.updateOne({gID:req.body.guildID}, guild).then(()=>
                {
                    return res.json(guild);    
                })
            })
    }
}

exports.getMessage = (bot)=>
{
    return async (req, res)=>
    {
        const TextChannels = bot.guilds.cache.get(req.headers.guildid).channels.cache.filter(x=>x.type==0);
        TextChannels.forEach(channel => {
            (async (channel)=>
            {
                var message
                try {
                    message = await channel.messages.fetch(req.headers.messageid);
                } catch (error) {
                    //message doesn't exist on this channel or at all
                }
                if(message)
                {
                    message = message.content
                    if(message.split('***').length %2 == 1) message = message.replaceAll('***', '');
                    if(message.split('**').length %2 == 1) message = message.replaceAll('**', '');
                    if(message.split('*').length %2 == 1) message = message.replaceAll('*', '');
                    if(message.split('~~').length %2 == 1) message =  message.replaceAll('~~', '');
                    if(message.split('```').length %2 == 1) message =  message.replaceAll('```', '');
                    if(message.split('``').length %2 == 1) message =  message.replaceAll('``', '');
                    if(message.split('`').length %2 == 1) message =  message.replaceAll('`', '');
                    res.json({message})
                }
            })(channel)
        });
    }
}
exports.getRules = async (req,res)=>
{
    var payload;
    if(req.headers.guildid)
    {
        payload =  await roleRulesM.find({gID:req.headers.guildid})
                .then(rules =>{return rules})
                .catch(()=>{return null})
        return res.json(payload);
    }
    payload = await roleRulesM.findOne({_id:req.headers.id})
                            .then(rule=>{return rule})
                            .catch(()=>{return null})
    return res.json(payload);
}
exports.updateRule = (bot)=>
{
    return async (req, res)=>
    {
        let args = req.headers;
        if(args.isnew == 'true')
        {
            const validationResult = await confirmArgs(args);
            if (validationResult.error) return res.json({error:validationResult.error})
            var rule = new roleRulesM();
            rule.gID = validationResult.gID;
            rule.mID = validationResult.mID;
            rule.roleID = validationResult.roleID;
            rule.roleEmoji = validationResult.roleEmoji;
            rule.roleName = validationResult.roleName;         
            rule.save(err=>
                {
                    if(err)res.json(err);
                    res.json({success:true,rule})
                })
        }
        else
        {
            const validationResult = await confirmArgs(args);
            if (validationResult.error) return res.json({error:validationResult.error})
            roleRulesM.findOne({id:args.id}).then(rule=>
                {
                    if(!rule) return res.json({error:'DB Error'});
                    rule.gID = validationResult.gID;
                    rule.mID = validationResult.mID;
                    rule.roleID = validationResult.roleID;
                    rule.roleEmoji = validationResult.roleEmoji;
                    rule.roleName = validationResult.roleName;      
                    roleRulesM.updateOne({_id:rule.id}, rule,{upsert:true}).then(updatedG=>
                    {
                        res.json({success:true, rule})
                    })

                })
        }
    }
    async function confirmArgs(args)
    {
        var mID = args.messageid;
        var roleID = args.roleid;
        var roleEmoji = args.emojiid;
        var gID = args.gid;
        var roleName;
        if(!(mID && roleID && roleEmoji && gID)) return mID?(roleID?(roleEmoji? false: {error:'Emoji ID'}):{error:'Role ID'}):{error:'Message ID'};
        var m = await (async ()=>
        {
            for(const [id, channel] of bot.channels.cache)
            {
                if(channel.type == 0)
                {
                    try {
                        const exists = await bot.channels.cache.get(id).messages.fetch(mID);
                        if(exists) return m = true;
                    } catch (error) {}
                }
            }
        })();
        const r = bot.guilds.cache.get(gID).roles.cache.get(roleID);
        const e =  bot.guilds.cache.get(gID).emojis.cache.get(roleEmoji);    
        if(!m || !r || !e) return m?(r?(e?false:{error:'Emoji ID'}):{error:'Role ID'}):{error:'Message ID'}
        roleName = r.name;
        return {mID, roleID, roleEmoji, roleName, gID}
    }
}